The wife of the 1800mattress.com founder was allegedly murdered by her own son in Searingtown.

The public relations firm representing the company confirmed that the victim was 65-year-old Kay Barragan. Steinreich Communications, LLC says a family employee found the body at around 7 a.m. Wednesday at the Sunset Drive home.

Police have arrested the victim's son, 38-year-old Eduardo Barragan, and charged him with second-degree murder.

Police say they still don't know the exact motive for the murder. However, they say the victim and her son had an argument Tuesday night.

A spokesman for 1800mattress.com says Eduardo Barragan was "treated for a number of mental illnesses over the years."

Eduardo is currently being treated for injuries at Nassau University Medical Center. His arraignment will be postponed until he is stabilized.

Kay Barragan was credited with lending her husband, Napoleon Barragan, $2,000 earned from selling Avon products in Queens to start Dial-A-Mattress in 1976. She had also worked for the company in its early years. It was renamed 1800mattress.com in 1996 to reflect its growth online. AP wire services contributed to this report